Frankly, I'm not entirely sure why Clinton supporters are so pleased that she's winning in Pennsylvania. In fact, I'd say, based on all the predictions that were out there and the fact that she was expected to win PA all along, that she's doing disappointingly poorly. Obama is showing an uncanny ability to stay close to her even in states where he was expected to lose by 10+ percentage points... that certainly doesn't look good for her by any means.